The key word product tells us we need to multiply. The key word increase tells use we need to add and the key world is means we need to use an = sign
9x + 4 = 58
9x + 4 - 4 = 58 -4
9x = 54
9x / 9 = 54 / 9
x = 6
So the answer is 6
Answer:
3 metres
Step-by-step explanation:
Let the width of the pathway be x
Area: (9+2x)(4+2x)
36 + 8x + 18x + 4x²
4x² + 26x + 36
Increased area is 150:
4x² + 26x + 36 = 150
4x² + 26x - 114 = 0
2x² + 13x - 57 = 0
2x² + 19x - 6x - 57 = 0
x(2x + 19) - 3(2x + 19) = 0
(x - 3)(2x + 19) = 0
x = 3, x = -19/2
Answer:
H₁ = The local pizza takes less time than the chain.
H₀= The local pizza takes more time than the chain.
Step-by-step explanation:
Since you want to know if the advertisement by the local pizza restaurant ("It delivers to the dormitories faster than a local branch of a national chain") is true, the hypothesis to be performed is
H₁ = The local pizza takes less time than the chain.
H₀= The local pizza takes more time than the chain.